JP2010015910A - Vehicular signal lamp - Google Patents

Abstract

An object of the present invention is to make the distance between a cover lens and all LED light sources that wrap around from the front surface of a vehicle signal light to the upper surface side and the side surface substantially uniform, and the surface of the cover lens and the main optical axis of all LED light sources. Are approximately orthogonal.
In a vehicular signal lamp 10 in which a bracket 2 is formed so that a cover lens 1 is roughly offset, an LED light source 5 is directly mounted on the surface of a flexible substrate 4, and a planar metal substrate 6 is mounted. Bonded to the back surface of the flexible substrate 4, one metal substrate 6 is arranged on the opposite side of the one LED light source 5 across the flexible substrate 4, and the flexible substrate 4 is located at or near the position where the cover lens 1 is offset. The metal substrate 6 joined to the LED light source 5 and the flexible substrate 4 was attached to the bracket 2 so that the main optical axis L of all the LED light sources 5 and the cover lens 1 were orthogonal to each other.
[Selection] Figure 1

Description

  The present invention forms a cover lens so as to wrap around from the front surface of the vehicle signal light to the upper surface side and wrap around from the front surface of the vehicle signal light to the side surface side, and forms a bracket so that the cover lens has a substantially offset shape, The present invention relates to a vehicular signal lamp in which a flexible board on which a plurality of LED light sources are mounted is disposed at or near a position where a cover lens is offset in a lamp chamber.

  In particular, the present invention is for a vehicle in which the distance between all the LED light sources and the cover lens that wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side can be made substantially uniform. Regarding signal lights.

  Furthermore, the present invention makes the main optical axes of all LED light sources substantially orthogonal to the surface of the cover lens that wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side. It is related with the signal lamp for vehicles which can do.

  FIG. 4 is a schematic cross-sectional view of a conventional vehicle rear lamp. Specifically, FIG. 4A is a schematic sectional view of a conventional vehicle rear lamp as viewed from the right side, and FIG. 4B is a schematic sectional view of the conventional vehicle rear lamp as viewed from above.

  In the conventional vehicle rear lamp shown in FIG. 4, the vehicle rear lamp wraps around from the front surface (rear surface of the vehicle body) (left side of FIG. 4A) to the upper surface side (upper side of FIG. 4A). The cover lens 1 is formed so as to go from the front surface (rear surface of the vehicle body) (lower side of FIG. 4B) to the side surface side (left side of FIG. 4B). Furthermore, a metal substrate 14 having a substantially step-like cross-sectional shape is disposed in a lamp chamber defined by the cover lens 1 and a housing (not shown). A plurality of LED light sources 5 are mounted on the metal substrate 14. Furthermore, a conductor pattern for supplying power to each LED light source 5 is formed on the metal substrate 14.

  By the way, in the conventional vehicle rear lamp shown in FIG. 4, since the metal substrate 14 is formed in a substantially stepped shape, a cover lens 1 and a housing (not shown) for housing the metal substrate 14 and the plurality of LED light sources 5. ) Is widened, and the entire rear lamp for the vehicle is enlarged. Moreover, since it is necessary to press a flat sheet metal into a substantially stepped shape, the manufacturing cost of the entire vehicle rear lamp increases.

  FIG. 5 is a schematic sectional view of another conventional vehicle rear lamp. Specifically, FIG. 5A is a schematic sectional view of another conventional vehicle rear lamp as viewed from the right side, and FIG. 5B is a schematic sectional view of another conventional vehicle rear lamp as viewed from above. FIG.

  In the other conventional vehicular rear lamp shown in FIG. 5, the vehicle rear lamp turns from the front surface (rear surface of the vehicle body) (left side of FIG. 5A) to the upper surface side (upper side of FIG. 5A) and A cover lens 1 is formed so as to go from the front surface of the rear lamp (rear surface of the vehicle body) (lower side of FIG. 5B) to the side surface side (left side of FIG. 5B). Further, a plurality of flat glass epoxy substrates 24 are arranged in a substantially stepped manner in a lamp chamber defined by the cover lens 1 and a housing (not shown). A plurality of LED light sources 5 are mounted on the glass epoxy substrate 24. Further, a plurality of glass epoxy substrates 24 are connected to each other by jumper wires 9, and power is supplied to the LED light source 5.

  By the way, in the other conventional vehicle rear lamp shown in FIG. 5, since the plurality of glass epoxy substrates 24 are arranged in a substantially stepped manner, a cover for accommodating the plurality of glass epoxy substrates 24 and the plurality of LED light sources 5 is used. The distance between the lens 1 and the housing is increased, and the entire rear lamp for the vehicle is increased in size. Further, since it is necessary to attach a plurality of jumper wires 9, the manufacturing cost of the entire vehicle rear lamp increases.

  Further, conventionally, a flexible substrate on which a plurality of LED light sources are mounted is disposed in a lamp chamber defined by a curved cover lens and a housing having a shape in which the cover lens is substantially offset. A vehicular signal lamp is known in which a mounted flexible board is disposed at or near a position where a cover lens is offset. Examples of this type of vehicle signal lamp include those described in FIGS. 1 (a) and 2 of JP-A-2000-1000021, for example.

  Specifically, in the vehicular signal lamp described in FIG. 1A of Japanese Patent Laid-Open No. 2000-1000021, the cover lens is formed in a curved surface shape. Furthermore, in the vehicle signal light described in FIG. 2 of Japanese Patent Laid-Open No. 2000-1000021, the LED light source is mounted on a flat rigid substrate, and a plurality of rigid substrates are mounted on a flexible substrate that can be bent. .

  In the second embodiment of the vehicle signal lamp described in Japanese Patent Laid-Open No. 2000-1000021, the curved cover lens described in FIG. 1A of Japanese Patent Laid-Open No. 2000-1000021 and the cover lens are roughly offset. A flexible substrate on which a plurality of LED light sources described in FIG. 2 of Japanese Patent Application Laid-Open No. 2000-1000021 is mounted in a lamp chamber defined by the housing having the shape.

  Furthermore, in the second embodiment of the vehicular signal lamp described in Japanese Patent Application Laid-Open No. 2000-1000021, the flexible substrate is bent so that the rigid substrate is substantially parallel to the curved surface of the cover lens, The distance between all the LED light sources and the cover lens is substantially uniform.

  Therefore, according to the second embodiment of the vehicular signal lamp described in Japanese Patent Application Laid-Open No. 2000-1000021, the above-mentioned problems of the conventional vehicular rear lamp shown in FIG. 4 and the other shown in FIG. The above-described problems of the conventional vehicle rear lamp can be solved.

  By the way, in the vehicle signal lamp described in FIG. 2 of Japanese Patent Application Laid-Open No. 2000-1000021, a plurality of LED light sources are arranged in a vertical direction on a single rigid board extending in the vertical direction. The substrates are arranged and mounted on the flexible substrate in the left-right direction.

  Therefore, in the vehicle signal lamp described in FIG. 2 of Japanese Patent Laid-Open No. 2000-1000021, the vehicle signal lamp wraps around from the front surface to the side surface side, and the vehicle signal lamp wraps around from the front surface to the top surface side. Although the distance between the uncovered cover lens and all the LED light sources can be made substantially uniform, the vehicle signal lamp described in FIG. 2 of Japanese Patent Application Laid-Open No. 2000-100209 goes around from the front of the vehicle signal lamp to the upper surface side. At the same time, the distance between the cover lens that wraps around from the front side to the side of the vehicle signal lamp and all the LED light sources cannot be made substantially uniform.

  Moreover, in the vehicle signal lamp described in FIG. 2 of Japanese Patent Laid-Open No. 2000-1000021, the vehicle signal lamp wraps around from the front surface to the side surface side, and the vehicle signal lamp wraps around from the front surface to the top surface side. Although the main optical axes of all the LED light sources can be substantially orthogonal to the surface of the cover lens that is not, the vehicle signal lamp described in FIG. The main optical axes of all the LED light sources cannot be made substantially orthogonal to the surface of the cover lens that wraps around the upper surface side and wraps around from the front surface to the side surface side of the vehicle signal lamp.

FIG. 1 (a) and FIG. 2 of Japanese Patent Laid-Open No. 2000-1000021

  In view of the above problems, the present invention makes the distance between all LED light sources substantially uniform from the front surface of the vehicle signal light to the upper surface side and the cover lens that extends from the front surface of the vehicle signal light to the side surface side. An object of the present invention is to provide a vehicular signal light that can be used.

  Furthermore, the present invention makes the main optical axes of all LED light sources substantially orthogonal to the surface of the cover lens that wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side. An object of the present invention is to provide a vehicular signal light that can be used.

  According to the first aspect of the present invention, the cover lens (1) is formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. The bracket (2) is formed so that the shape is substantially offset, and the flexible substrate (4) on which the plurality of LED light sources (5) are mounted is covered with the cover lens (1) in the lamp chamber (3). ) Are offset at or near the vehicle signal lamp (10), a plurality of LED light sources (5) are directly surface mounted on the surface of the flexible substrate (4), and a plurality of planar metal substrates (6 ) Is bonded to the back surface of the flexible substrate (4), and a plurality of LEDs are arranged such that one metal substrate (6) is located on the opposite side of the one LED light source (5) across the flexible substrate (4). Light source (5 And a plurality of metal substrates (6) are arranged so that the portion (4a) to which the metal substrate (6) is bonded becomes flat in the flexible substrate (4), and the metal substrate (6) The LED light source (5) so that the unjoined part (4b) can be bent and the main optical axis (L) of all LED light sources (5) is substantially orthogonal to the surface of the cover lens (1). And the vehicle signal lamp (10) characterized by attaching the several metal board | substrate (6) joined with the flexible substrate (4) to the bracket (2).

  According to the invention described in claim 2, the bracket (2) has a function as a housing, and the lamp chamber (3) is defined by the cover lens (1) and the bracket (2). Item 10. A vehicle signal lamp (10) according to item 1 is provided.

  According to the third aspect of the present invention, the plurality of substrate receiving recesses (2a) that are substantially complementary to the plurality of metal substrates (6) are formed in the bracket (2), and the main light of all the LED light sources (5) is formed. The plurality of metal substrates (6) are attached to the plurality of substrate receiving recesses (2a) so that the axis (L) is substantially orthogonal to the surface of the cover lens (1), and the metal substrate (6) and the bracket (2) The vehicle signal light (10) according to claim 2, wherein the bottom portion (2a1) of the substrate housing recess (2a) is thermally connected.

  According to the fourth aspect of the present invention, the cover lens (1) is formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. The bracket (2) is formed so that the shape is substantially offset, and the flexible substrate (4) on which the plurality of LED light sources (5) are mounted is covered with the cover lens (1) in the lamp chamber (3). ) Are offset at or near the vehicle signal lamp (10), a plurality of LED light sources (5) are directly surface mounted on the surface of the flexible substrate (4), and the LED light source of the bracket (2) The portion (2c) located directly behind (5) is formed in a planar shape, and the portion (2b) not located directly behind the LED light source (5) is formed in a curved shape, with the flexible substrate (4) being separated. The plurality of LED light sources (5) and the plurality of planar portions (2c) of the bracket (2) are arranged so that one planar portion (2c) is located on the opposite side of the LED light sources (5). A portion of the flexible substrate (4) positioned directly behind the LED light source (5) so that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1). (4a) is attached to the planar part (2c) of the bracket (2), whereby the part (4a) attached to the planar part (2c) of the bracket (2) of the flexible substrate (4) is planar. The vehicle signal lamp (10) is characterized in that the portion (4b) in contact with the curved surface portion (2b) of the bracket (2) can be bent.

  In the vehicle signal lamp (10) according to the first aspect, the cover lens (1) is formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. Moreover, the bracket (2) is formed so that it may become the shape which offset the cover lens (1) roughly. Further, a flexible substrate (4) on which a plurality of LED light sources (5) are mounted is disposed in the lamp chamber (3).

  Specifically, in the vehicular signal lamp (10) according to claim 1, the plurality of LED light sources (5) are directly surface-mounted on the surface of the flexible substrate (4). A plurality of planar metal substrates (6) are bonded to the back surface of the flexible substrate (4). Further, the plurality of LED light sources (5) and the plurality of metal substrates (6) are arranged such that one metal substrate (6) is positioned on the opposite side of the one LED light source (5) with the flexible substrate (4) interposed therebetween. ) Is arranged.

  That is, in the vehicle signal lamp (10) according to claim 1, one LED light source (5) is provided instead of one metal substrate (6) corresponding to the plurality of LED light sources (5). One metal substrate (6) is provided corresponding to the above.

  Therefore, according to the vehicular signal lamp (10) of the first aspect, the portion (4a) to which the metal substrate (6) is joined can be made planar in the flexible substrate (4).

  Furthermore, according to the vehicular signal lamp (10) according to claim 1, from the front surface of the vehicular signal light to the upper surface side, corresponding to the cover lens (1) that wraps around from the front surface of the vehicular signal light to the upper surface side. Of the flexible substrate (4), the portion (4b) to which the metal substrate (6) is not bonded can be bent so as to go around.

  Further, according to the vehicle signal lamp (10) according to claim 1, from the front surface of the vehicle signal light to the side surface side, corresponding to the cover lens (1) that wraps around from the front surface of the vehicle signal light to the side surface side. Of the flexible substrate (4), the portion (4b) to which the metal substrate (6) is not bonded can be bent so as to go around.

  Furthermore, in the vehicle signal lamp (10) according to claim 1, the flexible substrate (4) on which the plurality of LED light sources (5) are mounted offsets the cover lens (1) in the lamp chamber (3). It is arranged at or near the position.

  Therefore, according to the vehicular signal lamp (10) of the first aspect, the cover lens (1) that wraps around from the front side of the vehicular signal lamp to the upper surface side and wraps around from the front side of the vehicular signal lamp to the side surface side and all the The distance from the LED light source (5) can be made substantially uniform.

  Moreover, in the vehicle signal lamp (10) according to claim 1, the plurality of metals are arranged such that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1). A substrate (6) is attached to the bracket (2).

  That is, in the vehicular signal lamp (10) according to claim 1, the main optical axis (L) of all the LED light sources (5) wraps around from the front surface of the vehicular signal lamp to the upper surface side. The plurality of metal substrates (6) are arranged so as to be substantially orthogonal to the surface of the vehicle and to the surface of the cover lens (1) that wraps around from the front surface to the side surface of the vehicle signal light. It is attached to the bracket (2).

  Therefore, according to the vehicular signal lamp (10) according to claim 1, on the surface of the cover lens (1) which wraps around from the front surface of the vehicular signal lamp to the upper surface side and wraps around from the front surface of the vehicular signal lamp to the side surface side. On the other hand, the main optical axes (L) of all the LED light sources (5) can be made substantially orthogonal.

  In other words, according to the vehicular signal lamp (10) according to claim 1, the cover lens (1) wraps around from the front surface of the vehicular signal lamp to the upper surface side and wraps around from the front surface of the vehicular signal lamp to the side surface side. Even in this case, the distance between all the LED light sources (5) and the cover lens (1) can be made substantially uniform, and the main optical axis (L) of all the LED light sources (5) can be covered with the cover lens. It can be made substantially orthogonal to the surface of (1).

  That is, in the vehicle signal lamp (10) according to claim 1, the surface of the cover lens (1) formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. The main optical axes (L) of all the LED light sources (5) are substantially orthogonal to each other. That is, in the vehicular signal lamp (10) according to the first aspect, the main optical axes (L) of the plurality of LED light sources (5) are arranged substantially radially.

  Therefore, according to the vehicular signal lamp (10) according to claim 1, the light distribution pattern of the entire vehicular signal lamp (10) is divided into individual sections, and one LED light source ( The light from 5) can be irradiated.

  Alternatively, according to the vehicular signal lamp (10) according to claim 1, the light distribution pattern of the entire vehicular signal lamp (10) is divided into individual sections, for example, two LED light sources for one section. The light from (5) can be irradiated. As a result, even if one LED light source (5) fails, one LED light source (5) is complemented by the other LED light source (5), thereby avoiding the possibility that the light distribution pattern will be lost. can do.

  In the vehicular signal lamp (10) according to claim 2, the bracket (2) functions as a housing. Further, the lamp chamber (3) is defined by the cover lens (1) and the bracket (2) having a shape obtained by roughly offsetting the cover lens (1). Further, a flexible substrate (4) on which a plurality of LED light sources (5) are mounted is disposed in the lamp chamber (3).

  Therefore, according to the vehicular signal lamp (10) described in claim 2, the entire vehicular signal lamp (10) can be thinned.

  In the vehicle signal lamp (10) according to claim 3, a plurality of substrate receiving recesses (2a) having a shape approximately complementary to the plurality of metal substrates (6) are formed in the bracket (2) having a function as a housing. Yes. Further, the plurality of metal substrates (6) are formed in the plurality of substrate receiving recesses (2a) so that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1). It is attached. Furthermore, the metal substrate (6) and the bottom portion (2a1) of the substrate housing recess (2a) of the bracket (2) are thermally connected.

  That is, in the vehicle signal lamp (10) according to claim 3, the heat generated by the LED light source (5) is transferred to the flexible substrate (4), then transferred to the metal substrate (6), and then Then, heat is transferred to the bottom portion (2a1) of the substrate receiving recess (2a) of the bracket (2), and then from the bottom portion (2a1) of the substrate receiving recess (2a) of the bracket (2) to the outside of the lamp chamber (3). Heat is dissipated.

  Therefore, according to the vehicular signal lamp (10) of the third aspect, it is possible to suppress the heat generated by the LED light source (5) from being trapped inside the lamp chamber (3).

  In the vehicle signal lamp (10) according to the fourth aspect, the cover lens (1) is formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. Moreover, the bracket (2) is formed so that it may become the shape which offset the cover lens (1) roughly. Further, a flexible substrate (4) on which a plurality of LED light sources (5) are mounted is disposed in the lamp chamber (3).

  Specifically, in the vehicle signal lamp (10) according to claim 4, the plurality of LED light sources (5) are directly surface-mounted on the surface of the flexible substrate (4). In addition, a portion (2c) of the bracket (2) located directly behind the LED light source (5) is formed in a planar shape, and a portion (2b) not located directly behind the LED light source (5) is curved. Is formed.

  Furthermore, in the vehicle signal lamp (10) according to claim 4, one planar portion (2c) is positioned on the opposite side of one LED light source (5) across the flexible substrate (4). A plurality of planar portions (2c) of the plurality of LED light sources (5) and the bracket (2) are arranged.

  That is, in the vehicle signal lamp (10) according to the fourth aspect, one planar light source (2c) is not provided corresponding to the plurality of LED light sources (5), but one LED light source (5). ) Is provided with one planar portion (2c).

  In the vehicle signal lamp (10) according to claim 4, the portion (4a) located directly behind the LED light source (5) of the flexible substrate (4) is a planar portion (2c) of the bracket (2). ).

  Therefore, according to the vehicular signal lamp (10) of the fourth aspect, the portion (4a) located directly behind the LED light source (5) in the flexible substrate (4) can be planar.

  Furthermore, according to the vehicle signal lamp (10) according to claim 4, from the front surface of the vehicle signal light to the upper surface side, corresponding to the cover lens (1) that wraps around from the front surface of the vehicle signal light to the upper surface side. Of the flexible substrate (4), the portion (4b) in contact with the curved surface portion (2b) of the bracket (2) can be bent so as to go around.

  Further, according to the vehicle signal lamp (10) according to claim 4, from the front surface of the vehicle signal light to the side surface side, corresponding to the cover lens (1) wrapping around from the front surface of the vehicle signal light to the side surface side. Of the flexible substrate (4), the portion (4b) in contact with the curved surface portion (2b) of the bracket (2) can be bent so as to go around.

  Furthermore, in the vehicle signal lamp (10) according to claim 4, the flexible substrate (4) on which the plurality of LED light sources (5) are mounted offsets the cover lens (1) in the lamp chamber (3). It is arranged at or near the position.

  Therefore, according to the vehicle signal lamp (10) of the fourth aspect, the cover lens (1) that wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side and all the The distance from the LED light source (5) can be made substantially uniform.

  In the vehicle signal lamp (10) according to claim 4, the flexible substrate (10) is arranged so that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1). 4), the portion (4a) located directly behind the LED light source (5) is attached to the planar portion (2c) of the bracket (2).

  That is, in the vehicle signal lamp (10) according to claim 4, the cover lens (1) in which the main optical axes (L) of all the LED light sources (5) wrap around from the front surface of the vehicle signal lamp to the upper surface side. Of the flexible substrate (4) so as to be substantially orthogonal to the surface of the vehicle and to be substantially orthogonal to the surface of the cover lens (1) that wraps around from the front surface to the side surface of the vehicle signal lamp, A portion (4a) located directly behind the LED light source (5) is attached to the planar portion (2c) of the bracket (2).

  Therefore, according to the vehicle signal lamp (10) of the fourth aspect, on the surface of the cover lens (1) that wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side. On the other hand, the main optical axes (L) of all the LED light sources (5) can be made substantially orthogonal.

  In other words, according to the vehicle signal lamp (10) of the fourth aspect, the cover lens (1) wraps around from the front surface of the vehicle signal light to the upper surface side and wraps around from the front surface of the vehicle signal light to the side surface side. Even in this case, the distance between all the LED light sources (5) and the cover lens (1) can be made substantially uniform, and the main optical axis (L) of all the LED light sources (5) can be covered with the cover lens. It can be made substantially orthogonal to the surface of (1).

  That is, in the vehicle signal lamp (10) according to claim 4, the surface of the cover lens (1) formed so as to go from the front surface of the vehicle signal light to the upper surface side and from the front surface of the vehicle signal light to the side surface side. The main optical axes (L) of all the LED light sources (5) are substantially orthogonal to each other. That is, in the vehicle signal lamp (10) according to the fourth aspect, the main optical axes (L) of the plurality of LED light sources (5) are arranged substantially radially.

  Therefore, according to the vehicle signal lamp (10) of claim 4, the light distribution pattern of the entire vehicle signal lamp (10) is divided into individual sections, and one LED light source ( The light from 5) can be irradiated.

  Alternatively, according to the vehicular signal lamp (10) according to claim 4, the light distribution pattern of the entire vehicular signal lamp (10) is divided into individual sections, for example, two LED light sources for one section. The light from (5) can be irradiated. As a result, even if one LED light source (5) fails, one LED light source (5) is complemented by the other LED light source (5), thereby avoiding the possibility that the light distribution pattern will be lost. can do.

  Hereinafter, a first embodiment of a vehicular signal lamp of the present invention will be described. FIG. 1 is a diagram showing a vehicular signal lamp 10 according to a first embodiment. Specifically, FIG. 1 (A) is a schematic front view of the vehicular signal lamp 10 of the first embodiment, and FIG. 1 (B) is a schematic cross section taken along line AA of FIG. 1 (A). FIG. 1 and FIG. 1C are schematic cross-sectional views along the line BB in FIG.

  The vehicle signal lamp 10 of the first embodiment shown in FIG. 1 is applicable to a rear lamp on the left rear side of the vehicle body, for example. 1A corresponds to a view of the rear lamp on the left rear side of the vehicle body as viewed from the rear side of the vehicle body, and FIG. 1B shows a cross section of the rear lamp on the left rear side of the vehicle body as viewed from the upper side of the vehicle body. FIG. 1C corresponds to a cross-sectional view of the rear lamp on the left rear side of the vehicle body as viewed from the right side of the vehicle body.

  In the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1A and 1C, the front side (left side of FIG. 1C) of the vehicular signal lamp 10 is changed to the upper surface side (FIG. A cover lens 1 is formed so as to wrap around the upper side of C). Further, as shown in FIGS. 1 (A) and 1 (B), the vehicle signal lamp 10 is turned from the front surface (lower side of FIG. 1 (B)) to the side surface side (left side of FIG. 1 (B)). A cover lens 1 is formed. Further, as shown in FIGS. 1A, 1B, and 1C, a lens cut portion 1a is formed on the inner surface of the cover lens 1.

  Furthermore, in the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, the resin bracket 2 is formed so that the cover lens 1 has a substantially offset shape. Has been. In the vehicular signal lamp 10 of the first embodiment, the bracket 2 has a function as a housing. Further, the lamp chamber 3 is defined by the cover lens 1 and the bracket 2. A flexible substrate 4 on which a plurality of LED light sources 5 are mounted is disposed in the lamp chamber 3. Therefore, according to the vehicular signal lamp 10 of the first embodiment, the entire vehicular signal lamp 10 can be thinned.

  In the vehicular signal lamp 10 of the first embodiment, the bracket 2 has a function as a housing. However, in the vehicular signal lamp 10 of the second embodiment, a housing can be provided separately from the bracket 2 instead. It is.

  Further, in the vehicle signal lamp 10 of the first embodiment, the flexible substrate 4 is formed of, for example, polyimide. However, in the vehicle signal lamp 10 of the third embodiment, for example, polyethylene naphthalate or the like is used instead. It is also possible to form the flexible substrate 4 with an arbitrary resin material.

  FIG. 2 is a schematic development view of a main part of the flexible substrate 4 shown in FIG. Specifically, FIG. 2A is a front view of the flexible substrate 4, and FIG. 2B is a rear view of the flexible substrate 4.

  In the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1A, 1B, 1C, and 2A, for example, a plurality of LED light sources such as eight are provided. 5 is directly mounted on the surface of the flexible substrate 4 by, for example, soldering. In the vehicle signal lamp 10 of the first embodiment, as shown in FIGS. 1B, 1C, and 2B, the same number of planar metal substrates 6 as the plurality of LED light sources 5 are used. However, it is joined to the back surface of the flexible substrate 4 by, for example, an adhesive or a double-sided tape.

  Therefore, in the vehicle signal lamp 10 of the first embodiment, as shown in FIGS. 1B, 1C, 2A, and 2B, the metal substrate among the flexible substrates 4 is used. The part 4b to which the metal substrate 6 is not joined can be bent, but the part 4a to which the metal substrate 6 is joined cannot be curved and is flat.

  In the vehicular signal lamp 10 of the first embodiment, the metal substrate 6 is made of, for example, aluminum. However, in the vehicular signal lamp 10 of the fourth embodiment, any high thermal conductivity such as copper is used instead. It is also possible to form the metal substrate 6 with the metal material.

  Specifically, in the vehicular signal lamp 10 according to the first embodiment, as shown in FIGS. 1B, 1C, 2A, and 2B, the flexible substrate 4 is spaced apart. A plurality of LED light sources 5 and a plurality of metal substrates 6 are arranged so that one metal substrate 6 is positioned on the opposite side of one LED light source 5. That is, in the vehicular signal lamp 10 of the first embodiment, one metal substrate 6 is not provided corresponding to two or more LED light sources 5, but one corresponding to one LED light source 5. The metal substrate 6 is provided.

  Therefore, according to the vehicular signal lamp 10 of the first embodiment, the portion 4a of the flexible substrate 4 to which the metal substrate 6 is bonded can be made flat.

  Furthermore, according to the vehicle signal lamp 10 of the first embodiment, as shown in FIG. 1 (C), from the front surface (left side of FIG. 1 (C)) to the upper surface side (FIG. 1 (C)). Corresponding to the cover lens 1 that wraps around the upper side, the right side (right side in FIG. 2A) portion 4b of the flexible substrate 4 can be curved so as to wrap around from the front surface of the vehicle signal lamp 10 to the upper surface side. .

  Further, according to the vehicle signal lamp 10 of the first embodiment, as shown in FIG. 1 (B), the front side (the lower side of FIG. 1 (B)) to the side surface side (FIG. 1 (B)). Corresponding to the cover lens 1 that wraps around the left side of), the portion 4b of the flexible substrate 4 where the metal substrate 6 is not joined is curved so as to wrap around from the front surface of the vehicle signal lamp 10 to the side surface side. be able to.

  Furthermore, in the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, the flexible substrate 4 on which the plurality of LED light sources 5 are mounted is included in the lamp chamber 3. The cover lens 1 is disposed at the offset position or in the vicinity thereof. Therefore, according to the vehicle signal lamp 10 of the first embodiment, the vehicle signal lamp 10 wraps around from the front surface (left side of FIG. 1C) to the upper surface side (upper side of FIG. 1C) of the vehicle signal lamp 10. The distance between the cover lens 1 and all the LED light sources 5 that wrap around from the front surface (lower side of FIG. 1B) to the side surface side (left side of FIG. 1B) can be made substantially uniform.

  Further, in the vehicle signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, a plurality of substrate housing recesses 2 a that are substantially complementary to the plurality of metal substrates 6 are formed in the bracket 2. Is formed. Further, the plurality of metal substrates 6 are attached to the plurality of substrate housing recesses 2 a of the bracket 2 so that the main optical axes L of all the LED light sources 5 are substantially orthogonal to the surface of the cover lens 1.

  That is, in the vehicular signal lamp 10 of the first embodiment, the main optical axis L of all the LED light sources 5 is the front surface of the vehicular signal lamp 10 (left side of FIG. 1C) as shown in FIG. ) From the upper surface side (upper side in FIG. 1C) to the front surface of the vehicle signal lamp 10 so as to be substantially orthogonal to the surface of the cover lens 1 and as shown in FIG. Joined to the LED light source 5 and the flexible substrate 4 so as to be substantially orthogonal to the surface of the cover lens 1 that wraps around from the lower side of FIG. 1B to the side surface (left side of FIG. 1B). The plurality of metal substrates 6 are attached to the plurality of substrate housing recesses 2 a of the bracket 2.

  Therefore, according to the vehicle signal lamp 10 of the first embodiment, the surface of the cover lens 1 that wraps around from the front surface of the vehicle signal lamp 10 to the upper surface side and wraps around from the front surface of the vehicle signal lamp 10 to the side surface side. The main optical axes L of all the LED light sources 5 can be made substantially orthogonal.

  In other words, according to the vehicle signal lamp 10 of the first embodiment, the cover lens 1 wraps around from the front surface of the vehicle signal lamp 10 to the upper surface side and wraps around from the front surface of the vehicle signal lamp 10 to the side surface side. Even if it exists, the distance of all the LED light sources 5 and the cover lens 1 can be made substantially uniform, and the main optical axis L of all the LED light sources 5 shall be substantially orthogonal with respect to the surface of the cover lens 1. Can do.

  Specifically, in the vehicle signal light 10 of the first embodiment, a screw hole (not shown) is formed in the bottom portion 2a1 of the substrate housing recess 2a of the bracket 2, and the planar shape of the metal substrate 6 and the flexible substrate 4 is formed. A through hole (not shown) is formed in the portion 4a, and the planar portion 4a of the metal substrate 6 and the flexible substrate 4 is fastened with screws, so that the planar portion 4a of the metal substrate 6 and the flexible substrate 4 is attached to the bracket 2 It is being fixed with respect to the board | substrate accommodation recessed part 2a.

  In the vehicular signal lamp 10 of the fifth embodiment, instead, a protrusion (not shown) is formed on the bottom portion 2a1 of the substrate housing recess 2a of the bracket 2, and the planar portion 4a of the metal substrate 6 and the flexible substrate 4 is formed. A through hole (not shown) is formed in the metal substrate 6 and the planar portion 4a of the flexible substrate 4 is fastened together by thermal caulking so that the planar portion 4a of the metal substrate 6 and the flexible substrate 4 is attached to the bracket 2. It is also possible to fix to the substrate housing recess 2a.

  In the vehicular signal lamp 10 of the first embodiment, as shown in FIG. 1B, a portion 4 b of the flexible substrate 4 to which the metal substrate 6 is not joined is along the curved portion 2 b of the bracket 2. Is arranged.

  In the vehicular signal lamp 10 according to the first embodiment, as shown in FIGS. 1B and 1C, a heat radiating through hole (opening) is formed in the bottom portion 2a1 of the substrate housing recess 2a of the bracket 2. Although not provided, in the vehicle signal lamp 10 of the second embodiment in which a housing (not shown) is provided separately from the bracket 2, a through hole (opening) for heat dissipation is provided in the board housing recess 2 a of the bracket 2. It is also possible to form the bottom portion 2a1.

  In the vehicle signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, no inner lens is arranged between the plurality of LED light sources 5 and the cover lens 1. In the vehicle signal lamp 10 of the sixth embodiment, an inner lens can be disposed between the plurality of LED light sources 5 and the cover lens 1 and a lens cut portion can be formed in the inner lens.

  In the vehicular signal lamp 10 of the first embodiment in which the amount of heat generated by the LED light source 5 is relatively small, for example, a heat conductive sheet or heat conduction is provided between the metal substrate 6 and the bottom portion 2a1 of the substrate housing recess 2a of the bracket 2. In the vehicular signal lamp 10 according to the seventh embodiment, in which the LED light source 5 generates a relatively large amount of heat, the metal substrate 6 and the substrate housing recess 2a of the bracket 2 are not provided. A heat conductive member such as a heat conductive sheet, a heat conductive grease, or the like is disposed between the bottom portion 2a1. In other words, in the vehicular signal lamp 10 of the seventh embodiment, the metal substrate 6 and the bottom portion 2a1 of the substrate housing recess 2a of the bracket 2 are thermally connected.

  Further, in the vehicular signal lamp 10 of the seventh embodiment, a heat conductive member such as a heat conductive sheet or a heat conductive grease is provided between the planar portion 4a of the flexible substrate 4 and the metal substrate 6. Is arranged. That is, in the vehicle signal lamp 10 of the seventh embodiment, the planar portion 4a of the flexible substrate 4 and the metal substrate 6 are thermally connected.

  Therefore, in the vehicular signal lamp 10 of the seventh embodiment, the heat generated by the LED light source 5 is transferred to the planar portion 4a of the flexible substrate 4, then transferred to the metal substrate 6, and then the bracket 2 Then, heat is transferred to the bottom portion 2 a 1 of the substrate housing recess 2 a and then radiated from the bottom portion 2 a 1 of the substrate housing recess 2 a of the bracket 2 to the outside of the lamp chamber 3. As a result, according to the vehicular signal lamp 10 of the seventh embodiment, heat generated by the LED light source 5 can be suppressed from being trapped inside the lamp chamber 3.

  In the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, a substrate housing recess 2 a is formed in the bracket 2, and the metal substrate 6 is a substrate housing recess 2 a of the bracket 2. However, in the vehicular signal lamp 10 of the eighth embodiment, instead, the metal substrate 6 can be attached to the bracket 2 in which the substrate housing recess 2a is not formed.

  In the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1B and 1C, the front side (the left side of FIG. 1C) of the vehicular signal lamp 10 is changed to the upper surface side (FIG. C) and the surface of the cover lens 1 formed so as to wrap around from the front surface (lower side of FIG. 1B) to the side surface side (left side of FIG. 1B) of the vehicle signal lamp 10. On the other hand, the main optical axes L of all the LED light sources 5 are substantially orthogonal. That is, in the vehicular signal lamp 10 of the first embodiment, the main optical axes L of the plurality of LED light sources 5 are arranged in a substantially radial pattern.

  Specifically, in the vehicular signal lamp 10 of the first embodiment, as shown in FIGS. 1A, 1B, and 1C, directivity is compared as eight LED light sources 5. A high LED light source 5 is used. Therefore, in the vehicular signal lamp 10 of the first embodiment, the irradiation area of the light emitted from one LED light source 5 out of the eight LED light sources 5 and the light emitted from the other LED light sources 5 The irradiation area cannot be overlapped. Furthermore, in the vehicular signal lamp 10 of the first embodiment, the light distribution pattern of the entire vehicular signal lamp 10 is divided into eight sections, and light is emitted from each of the eight LED light sources 5 to each section. Irradiated.

  In the vehicular signal lamp 10 of the ninth embodiment, instead of the eight LED light sources 5, the directivity is relatively long as shown in FIG. 1 (A), FIG. 1 (B), and FIG. 1 (C). A low LED light source 5 is used. Therefore, in the vehicular signal lamp 10 of the ninth embodiment, the light irradiation area irradiated from one LED light source 5 out of the eight LED light sources 5 and the light irradiated from the other LED light sources 5 The irradiation area is overlapped.

  Specifically, in the vehicular signal lamp 10 of the ninth embodiment, as shown in FIGS. 1A, 1B, and 1C, 4 in the upper stage (the upper stage in FIG. 1A). The irradiation area of light emitted from the LED light sources 5 and the irradiation area of light emitted from the four LED light sources 5 in the lower stage (lower stage in FIG. 1A) are in the vertical direction (FIG. 1A ) In the vertical direction).

  Further, in the vehicular signal lamp 10 of the ninth embodiment, the light distribution pattern of the entire vehicular signal lamp 10 is divided into four sections, and one LED light source in the upper stage (the upper stage in FIG. 1A). The light from 5 and the light from one LED light source 5 in the lower stage (the lower stage in FIG. 1A) just below it are irradiated to the same section.

  Therefore, according to the vehicular signal lamp 10 of the ninth embodiment, even if one LED light source 5 in the upper stage (the upper stage in FIG. 1A) fails, the lower stage (see FIG. The lower LED light source 5 in the lower stage) is supplemented with the upper LED light source 5 to avoid the possibility that the light distribution pattern is lost.

  Hereinafter, a tenth embodiment of the vehicular signal lamp of the present invention will be described. FIG. 3 is a view showing a vehicular signal lamp 10 according to the tenth embodiment. Specifically, FIG. 3 (A) is a schematic front view of the vehicular signal lamp 10 of the tenth embodiment, and FIG. 3 (B) is a schematic cross section taken along the line CC of FIG. 3 (A). FIG. 3 and FIG. 3C are schematic cross-sectional views along the line DD in FIG.

  In the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3 (A) and 3 (C), the front surface (left side of FIG. 3 (C)) to the upper surface side (FIG. 3 (C)). A cover lens 1 is formed so as to wrap around the upper side of C). Further, as shown in FIGS. 3 (A) and 3 (B), the vehicle signal lamp 10 is turned from the front surface (lower side of FIG. 3 (B)) to the side surface side (left side of FIG. 3 (B)). A cover lens 1 is formed. Moreover, as shown in FIGS. 3A, 3B, and 3C, a lens cut portion 1a is formed on the inner surface of the cover lens 1. FIG.

  Furthermore, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, the resin bracket 2 is formed so that the cover lens 1 is substantially offset. Has been. In the vehicular signal lamp 10 of the tenth embodiment, the bracket 2 has a function as a housing. Further, the lamp chamber 3 is defined by the cover lens 1 and the bracket 2. A flexible substrate 4 on which a plurality of LED light sources 5 are mounted is disposed in the lamp chamber 3. Therefore, according to the vehicular signal lamp 10 of the tenth embodiment, the entire vehicular signal lamp 10 can be thinned.

  In the vehicular signal lamp 10 of the tenth embodiment, the bracket 2 has a function as a housing, but in the vehicular signal lamp 10 of the eleventh embodiment, a housing can be provided separately from the bracket 2 instead. It is.

  Further, in the vehicular signal lamp 10 of the tenth embodiment, the bracket 2 is formed of a resin material. However, in the vehicular signal lamp 10 of the twelfth embodiment, instead of the bracket 2 of a metal material such as aluminum, for example. It is also possible to form

  In the vehicle signal lamp 10 of the first embodiment, as shown in FIG. 2, the same number of planar metal substrates 6 as the plurality of LED light sources 5 are bonded to the back surface of the flexible substrate 4. In the vehicle signal lamp 10 of the form, the metal substrate 6 is not joined to the back surface of the flexible substrate 4.

  In the vehicular signal lamp 10 of the tenth embodiment, the flexible substrate 4 is formed of, for example, polyimide. However, in the vehicular signal lamp 10 of the thirteenth embodiment, instead, for example, an arbitrary signal such as polyethylene naphthalate is used. It is also possible to form the flexible substrate 4 with a resin material.

  Specifically, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 2A, 3A, 3B, and 3C, for example, eight A plurality of LED light sources 5 are directly mounted on the surface of the flexible substrate 4 by, for example, soldering.

  Further, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, a portion 2c of the bracket 2 that is located directly behind the LED light source 5 is formed in a planar shape. In addition, a portion 2b that is not located directly behind the LED light source 5 is formed in a curved surface shape.

  Furthermore, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, one plane is provided on the opposite side of the one LED light source 5 with the flexible substrate 4 interposed therebetween. The plurality of LED light sources 5 and the plurality of planar portions 2c of the bracket 2 are arranged so that the portion 2c is located. That is, in the vehicle signal lamp 10 of the tenth embodiment, one planar portion 2 c is not provided corresponding to the plurality of LED light sources 5, but one piece corresponding to one LED light source 5. A planar portion 2c is provided.

  In the vehicular signal lamp 10 according to the tenth embodiment, as shown in FIGS. 3B and 3C, the portion 4 a of the flexible substrate 4 that is located directly behind the LED light source 5 is provided on the bracket 2. Are attached to the planar portion 2c.

  Therefore, according to the vehicular signal lamp 10 of the tenth embodiment, the portion 4 a of the flexible substrate 4 that is located directly behind the LED light source 5 can be planar.

  Furthermore, according to the vehicular signal lamp 10 of the tenth embodiment, as shown in FIG. 3C, the front of the vehicular signal lamp 10 (left side of FIG. 3C) to the upper surface side (FIG. 3C). Corresponding to the cover lens 1 that wraps around the upper side, the right side (right side in FIG. 2A) portion 4b of the flexible substrate 4 can be curved so as to wrap around from the front surface of the vehicle signal lamp 10 to the upper surface side. .

  Further, according to the vehicular signal lamp 10 of the tenth embodiment, as shown in FIG. 3 (B), the front side (lower side of FIG. 3 (B)) to the side face side (FIG. 3 (B) The portion of the flexible substrate 4 that is in contact with the curved surface portion 2b of the bracket 2 so as to go from the front surface of the vehicle signal lamp 10 to the side surface side corresponding to the cover lens 1 that wraps around the left side) 4b can be curved.

  Furthermore, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, the flexible substrate 4 on which the plurality of LED light sources 5 are mounted is included in the lamp chamber 3. The cover lens 1 is disposed at the offset position or in the vicinity thereof. Therefore, according to the vehicle signal lamp 10 of the tenth embodiment, the vehicle signal lamp 10 wraps around from the front surface (left side of FIG. 3C) to the upper surface side (upper side of FIG. 3C) of the vehicle signal lamp 10. The distance between the cover lens 1 and all the LED light sources 5 that wrap around from the front surface (lower side of FIG. 3B) to the side surface side (left side of FIG. 3B) can be made substantially uniform.

  Further, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, the main optical axis L of all the LED light sources 5 is roughly relative to the surface of the cover lens 1. Of the flexible substrate 4, a portion 4 a located directly behind the LED light source 5 is attached to the planar portion 2 c of the bracket 2 so as to be orthogonal to each other.

  That is, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIG. 3C, the main optical axis L of all the LED light sources 5 is the front surface of the vehicular signal lamp 10 (the left side of FIG. 3C). ) From the upper surface side (upper side in FIG. 3C) to the front surface of the vehicle signal lamp 10 so as to be substantially orthogonal to the surface of the cover lens 1 and as shown in FIG. Of the flexible substrate 4, the LED light source 5 is arranged so as to be substantially orthogonal to the surface of the cover lens 1 that wraps around from the lower side of FIG. A portion 4 a located directly behind is attached to the planar portion 2 c of the bracket 2.

  Therefore, according to the vehicular signal lamp 10 of the tenth embodiment, with respect to the surface of the cover lens 1 that wraps around from the front surface of the vehicular signal lamp 10 to the upper surface side and wraps around the front side surface of the vehicular signal lamp 10 The main optical axes L of all the LED light sources 5 can be made substantially orthogonal.

  In other words, according to the vehicle signal lamp 10 of the tenth embodiment, the cover lens 1 wraps around from the front surface of the vehicle signal lamp 10 to the upper surface side and wraps around from the front surface of the vehicle signal lamp 10 to the side surface side. Even if it exists, the distance of all the LED light sources 5 and the cover lens 1 can be made substantially uniform, and the main optical axis L of all the LED light sources 5 shall be substantially orthogonal with respect to the surface of the cover lens 1. Can do.

  Specifically, in the vehicle signal light 10 of the tenth embodiment, a screw hole (not shown) is formed in the planar portion 2 c of the bracket 2, and a through hole (not shown) is formed in the planar portion 4 a of the flexible substrate 4. And the flat portion 4a of the flexible substrate 4 is screwed, so that the portion 4a of the flexible substrate 4 located directly behind the LED light source 5 becomes flat and the flat portion of the bracket 2 is formed. It is fixed with respect to 2c.

  In the vehicular signal light 10 of the fourteenth embodiment, instead, a projection (not shown) is formed on the planar portion 2 c of the bracket 2, and a through hole (not shown) is formed in the planar portion 4 a of the flexible substrate 4. It is also possible to fix the portion 4a of the flexible substrate 4 that is located directly behind the LED light source 5 to a planar portion 2c of the bracket 2 by heat caulking.

  In the vehicular signal lamp 10 according to the tenth embodiment, as shown in FIG. 3B, the portion 4 b of the flexible substrate 4 that does not contact the planar portion 2 c of the bracket 2 is the curved portion 2 b of the bracket 2. Are arranged along.

  In the vehicle signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, no inner lens is arranged between the plurality of LED light sources 5 and the cover lens 1, In the vehicular signal lamp 10 of the fifteenth embodiment, an inner lens can be disposed between the plurality of LED light sources 5 and the cover lens 1 and a lens cut portion can be formed in the inner lens.

  In the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3B and 3C, the front side (left side of FIG. 3C) to the upper side (FIG. C) and the surface of the cover lens 1 formed so as to wrap around from the front surface (lower side of FIG. 3B) to the side surface side (left side of FIG. 3B) of the vehicle signal lamp 10. On the other hand, the main optical axes L of all the LED light sources 5 are substantially orthogonal. That is, in the vehicular signal lamp 10 of the tenth embodiment, the main optical axes L of the plurality of LED light sources 5 are arranged in a substantially radial pattern.

  Specifically, in the vehicular signal lamp 10 of the tenth embodiment, as shown in FIGS. 3 (A), 3 (B), and 3 (C), directivity is compared as eight LED light sources 5. A high LED light source 5 is used. Therefore, in the vehicular signal lamp 10 of the tenth embodiment, the irradiation area of light emitted from one LED light source 5 of the eight LED light sources 5 and the light emitted from other LED light sources 5 The irradiation area cannot be overlapped. Furthermore, in the vehicular signal lamp 10 of the tenth embodiment, the light distribution pattern of the entire vehicular signal lamp 10 is divided into eight sections, and light is emitted from each of the eight LED light sources 5 to each section. Irradiated.

  In the vehicular signal lamp 10 of the sixteenth embodiment, instead, as shown in FIGS. 3A, 3B, and 3C, the eight LED light sources 5 have relatively high directivity. A low LED light source 5 is used. Therefore, in the vehicular signal lamp 10 according to the sixteenth embodiment, the irradiation area of the light emitted from one LED light source 5 of the eight LED light sources 5 and the light emitted from the other LED light sources 5 are used. The irradiation area is overlapped.

  Specifically, in the vehicular signal lamp 10 of the sixteenth embodiment, as shown in FIGS. 3A, 3B, and 3C, 4 in the upper stage (the upper stage in FIG. 3A). The irradiation area of light emitted from the LED light sources 5 and the irradiation area of light emitted from the four LED light sources 5 in the lower stage (lower stage in FIG. 3A) are in the vertical direction (FIG. 3A). ) In the vertical direction).

  Further, in the vehicular signal lamp 10 of the sixteenth embodiment, the light distribution pattern of the entire vehicular signal lamp 10 is divided into four sections, and one LED light source in the upper stage (the upper stage in FIG. 3A). The light from 5 and the light from one LED light source 5 in the lower stage (lower stage in FIG. 3A) immediately below the same are irradiated to the same section.

  Therefore, according to the vehicular signal lamp 10 of the sixteenth embodiment, even if one LED light source 5 in the upper stage (upper stage in FIG. 3A) fails, the lower stage (see FIG. The lower LED light source 5 in the lower stage) is supplemented with the upper LED light source 5 to avoid the possibility that the light distribution pattern is lost.

  In the seventeenth embodiment, the above-described first to sixteenth embodiments can be combined as appropriate.

  The vehicle signal light of the present invention is applicable to any vehicle signal light such as a brake lamp, a turn lamp, and the like.

It is the figure which showed the signal lamp 10 for vehicles of 1st Embodiment. FIG. 2 is a schematic development view of a main part of a flexible substrate 4 shown in FIG. 1. It is the figure which showed the signal lamp 10 for vehicles of 7th Embodiment. It is a schematic sectional drawing of the conventional rear lamp for vehicles. It is a schematic sectional view of another conventional vehicle rear lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cover lens 1a Lens cut part 2 Bracket 2a Board | substrate accommodation recessed part 2a1 Bottom part 2b, 2c part 3 Lamp chamber 4 Flexible board | substrate 4a, 4b part 5 LED light source 6 Metal substrate 10 Signal light for vehicles

Claims (4)

The cover lens (1) is formed so as to go from the front of the vehicle signal light to the upper surface side and from the front of the vehicle signal light to the side surface,
The bracket (2) is formed so that the cover lens (1) has a substantially offset shape,
In the vehicular signal lamp (10) in which the flexible substrate (4) on which the plurality of LED light sources (5) are mounted is disposed in the lamp chamber (3) at or near the position where the cover lens (1) is offset. ,
A plurality of LED light sources (5) are directly surface mounted on the surface of the flexible substrate (4),
Bonding a plurality of planar metal substrates (6) to the back surface of the flexible substrate (4),
The plurality of LED light sources (5) and the plurality of metal substrates (6) are arranged such that one metal substrate (6) is positioned on the opposite side of the one LED light source (5) across the flexible substrate (4). The portion (4a) to which the metal substrate (6) is bonded becomes flat in the flexible substrate (4), and the portion (4b) to which the metal substrate (6) is not bonded is formed. Bendable,
A plurality of metal substrates joined to the LED light source (5) and the flexible substrate (4) so that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1). A vehicle signal lamp (10), wherein (6) is attached to the bracket (2). The bracket (2) has a function as a housing,
2. The vehicular signal lamp (10) according to claim 1, characterized in that the lamp chamber (3) is defined by the cover lens (1) and the bracket (2). A plurality of substrate receiving recesses (2a) having a shape approximately complementary to the plurality of metal substrates (6) are formed in the bracket (2),
A plurality of metal substrates (6) are attached to the plurality of substrate receiving recesses (2a) so that the main optical axes (L) of all the LED light sources (5) are substantially orthogonal to the surface of the cover lens (1).
The vehicle signal lamp (10) according to claim 2, wherein the metal substrate (6) and the bottom portion (2a1) of the substrate receiving recess (2a) of the bracket (2) are thermally connected. The cover lens (1) is formed so as to go from the front of the vehicle signal light to the upper surface side and from the front of the vehicle signal light to the side surface,
The bracket (2) is formed so that the cover lens (1) has a substantially offset shape,
In the vehicular signal lamp (10) in which the flexible substrate (4) on which the plurality of LED light sources (5) are mounted is disposed in the lamp chamber (3) at or near the position where the cover lens (1) is offset. ,
A plurality of LED light sources (5) are directly surface mounted on the surface of the flexible substrate (4),
Of the bracket (2), a portion (2c) located directly behind the LED light source (5) is formed in a planar shape, and a portion (2b) not located directly behind the LED light source (5) is formed in a curved shape,
A plurality of LED light sources (5) and a plurality of brackets (2) are arranged such that one planar portion (2c) is located on the opposite side of one LED light source (5) across the flexible substrate (4). Place the planar part (2c),
A portion of the flexible substrate (4) positioned directly behind the LED light source (5) so that the main optical axis (L) of all the LED light sources (5) is substantially orthogonal to the surface of the cover lens (1) ( 4a) is attached to the planar part (2c) of the bracket (2),
As a result, the portion (4a) attached to the planar portion (2c) of the bracket (2) in the flexible substrate (4) becomes planar and contacts the curved portion (2b) of the bracket (2). The vehicular signal lamp (10), wherein the contacting portion (4b) can be bent.

Images